Gas burner



June 7, 1932. DUFAULT 1,862,051 7 V GAS BURNER I Filed Dec. 50, 1930 2 Sheets-Sheet l June 7, 1932. H. D. DUFAULT GAS BURNER Filed Dec. 30, 1930 2 Sheets-Sheet 2 mbe wtoz Patented June 7, 1932 UNITED 'STATES PATENT OFFICE HOMER DLDUFAULT, 01:" EASTHAMPTON, MASSACHUSETTS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, OF TWO-TENTHS TO .ALDERIE FUGERE, TWO-TENTHS TO 'EUCLID'E FUGERE, TWO-TENTHS 'IO ADAM BOUCHER,

TO HIRAM BERNIER, ALL OF EASTHAMPTON, MASSA- BERNIER, AND ONE-TENTH CHUSETTS GAS BURNER Application filed December 30, 1930. Serial No. 505,603.

The invention relates primarily to gas burners designed for use within stoves, furnaces or other casings for heating purposes,

but not necessarily restricted to this field of The object of the invention is to provide a new and improved burner construction in which thorough mixing of gas and air and thorough distribution of the mixture take place, providing a hot blue flame within, about and above a perforated drum structure to which the gas and air are distributed by a novel base structure.

A further aim'is to provide a burner of such form as to thoroughly mix the air and gas without the necessity of using the conventional air mixer in the gas conducting means leading to the burner.

WVith the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawings.

ig. 1 is a perspective View partly broken away and in section showing a dual burner constructed in accordance with the invention find mounted within the fire box F of a range Fig. 2 is a plan view, theperforat'ed drums being omitted.

ig. 3 is a vertical sectional View on line 3-3 of Fig. 2, the perforated drums being shown in position upon the burner bases.

Fig. 4 is a fragmentary view similar to a portion of Fig. 2, but on an enlarged scale and partly in horizontal section.

Fig. 5 isa detail vertical line 55 of Fig. 4.

Fig. 6 is aperspective view of the major portion of one of the burner bases.

One form of construction has been illustrated and will be specifically described, with the understanding however that within the scope of the invention as claimed, variations may be made.

A dual burner is shown embodying two burner bases B supporting perforated drums D, said bases being connectedby a spider or the like S which may be supported byv post P or in any other desired way. Gas tubes sectional view on T embodying no air mixers, are shown, leading to the two bases B, and a pilot burner 12 is shown between the two drums D, to facilitate simultaneous lighting of both sections of the burner. As both of these burner sections are of the same construction, a description of one will sufiice.

The base B embodies a central gas receiving chamber 7 with which the tube T communicates, and said base is provided with a plurality of gas-conducting tunnels 8 radiating from said chamber, said tunnels having closed outer ends 9. The base B is provided at its upper side with 'arcuate concentric air and gas channels 10 and 11 respectively, and While said base embodies imperforate portions forming bottoms for the gas channels 11, the portions of said base which constitute the bottoms of the air channels 10 are formed with the air admission openings-12. While the invention is not so restricted, the base B is shown as formed of upper and lower sections 13 and 14 which may be cast, the lower section 14 forming the bottoms of the grooves 10 and 11 and the bottoms of the tunnels 8. Screws 15 are shown securing the sections 13 and 14 together and between the peripheries of these sections, sheet packing or plastic packing may be employed to prevent gas leakage. This is also true of other contacting portions of the sections 13 and 14. Preferably, all of said contacting portions are ground or otherwise faced to insure tight engagement, and in order that the entire upper surface of the lower section 14 need not be so ground or faced, said lower section is preferably upwardly thickened as indicated at 16,

wherever it is to contact with the upper secplurality of concentric perforated walls 18 pro- ' viding gas chambers 19 communicating with oughly mixed, and

the gas channels 11, and air chambers 20 communicating with the air channels 10. The lower ends of the perforated walls 18 are telescoped with the side walls of the various channels, which side walls are denoted at 21. These side walls are'preferably of greater height than the tunnels 8 and extend across the tops of the latter, as shown. Suitable stops 22, preferably of the convex form shown, are provided at the upper ends of the air chambers 20.to prevent out-rush of flame at these points and to insure that the air and gas shall travel through such tortuous courses as to insure thorough mixture and consequent perfect combustion. The positioning of the orifices 17, insures even distribution of gas to the chambers 19, and the distribution of air to the chambers 20 will be equally uniform. The gas and air flows through the perforations of the various walls 18, becomes thorburns with a hot blue flame, within, around and above the drum 1).

I am aware that burners somewhat analogous to that herein disclosed, have heretofore been used for first converting oil into vapor and for then consuming such vapor. However, I have not bodily taken such burners and merely used them for burning natural or artificial gas, construction which is adapted to' gas burning, whereas the conventional, burners of the type mentioned, cannot be satisfactorily used I for such purpose.

While the details disclosed may be followed if desired, variations may of course be made within the scope of the invention as claimed.

I claim I 1. A gas burner comprising a base having a central gas-receiving chamber and a plu- HOMER D. DUFAULT.

but have produced a new rality of tubular gas-conducting tunnels radiating from and communicating at their inner ends with said chamber, said tunnels extending uninterruptedlyto the periphery of the base and having closed outerends, said base being provided with arcuate concentric air end adjacent an end channels and with arcuate upwardly opening gas channels between said tunnels, said air and gas channels having their'ends closed by the walls of said tunnels, said base having an imperforatebottom for each upwardly opening gas channel while each air channel is open both upwardly and downwardly, side walls of said tubular tunnels having gas discharge orifices opening horizontally into ends of said gas channels to direct the discharged gas longitudinally throughout the lengths of said gas channels, and aperforated air and gas mixing drum upon said base having chambers communica ing with said air and gas channels.

2. In a gas burner, a base having elongated I unidirectional gas'channels each having an of the next adjacent 

